Nut-lock.



RPB. mom: N U T L 0 C K.

APPLICATIO LED JULYZLIBIB. 1,313,589. Patented Aug. 19, 1919.

UNITED srarnsrarnur OFFICE.

REASON EATON, OF OSWEGO, KANSAS,ASSIGNO R OF ONE-THIRD T0 VVILLITAJH J.

CARPENTER, OF" KANSAS CITY, MISSOURI.

To all whom it may concern Be it known that 1, Reason B. EATON, a citizenofthe United States, residing at Oswego, inthe county of Labette and State of Kansas, have invented acertain new and useful Improvement in Nut-Locks, of which the following is a specification."

My invention relates to improvements in Figure 1 is a central longitudinal sectional view of my improved. nut lock shown in operative posltion.

Fig. 2 is an end elevation of what 1s I shown in Fig. 1.

Fig. 3 is a fragmental sectional view showing theparts in operative position prior to the inner end of the locking pin having been upset and expanded in the countersink of the hole in which it'is fitted.

Fig. 4 is an inner view of the washer.

' Similar reference characters designate similar parts in the difierent views.

1 designates an ordinary bolt which ex ten ds through two members or plates 2 and 3, which it is designed to clamp together.

4 designates an ordinary square nut mounted on the bolt and bearing against the outer side of a washer 5, the inner side of which bears against the member 3. The latter member has means for engagingthe washer 5 to hold the washer from turning.

adapted to be fitted in any one of a series of holes 9, which are disposed in an arcuate row, preferably, and which extend through the washer 5, the center of the are being the lon itudinal center of the bolt 1. V

I As shown in the drawing, the inner end of each hole 9 is countersunk, so that when liTUT-LQCKJ. Specification of Letters wer Patented Aug. 19, 1919. Application filed uly 27,1918. Serial nofie iases. 17

the ;malleable' locking 'inis fittedin one of the'holes 9 and hammered inwardly, the in- Pref rablyfthe locking pinS beforebe' ing hammered, as described, projects outwardly beyond the nut 4, so as to be easily 7 struck with a hammer, see Fig. 3. When the locking in has been hammered sufficiently, it w1ll be shortened, and the head 10, formed at its inner end and occupying the countersink of the hole in which the pin is fitted, will be larger than the portion of the hole at the outside of the counter sink, and will thus be securely held from slipping out of the hole, regardless of the jarring or vibration to which the nut look may be subjected.

Theholes 9 are so located that one of them will always be uncovered whatever may be the position of the nut 4. As shown in the drawing, the holes 9 are so located that the radius of the are which touches the inner sides of the holes will be approximately the same as the radius of the smallest diameter of the nut 4. This will permit the ered.-

The countersunk port1on of each hole is,

preferably, concentric with the hole, so that ammering in of the pin will not tend to bend the pin laterally.

In the operation of my 1nvent1on, the

bolt 1 is passed through the plates 2 and 3,

after which the washer 5 is slipped onto the bolt and against the member or plate 3, the

projection 7 of the washer being fitted into the hole 6 of the member 3. The nut is then screwed onto the bolt so as to tightly clamp the washer 5 against the member 3, the nut being screwed perfectly tight.

The locking pin 8 is then fitted into a hole 9 which at the time is not covered by the nut, as shown in Fig. 3. In the drawing two holes are shown uncovered. The p n may be fitted into either of these two holes which are at the ends of the row, in the particularcase illustrated. .i 7

The projecting outer end of the locking pin 8 is then hammered until the inner end of the pin is upset to form the head 10. The locking pin will now securely hold the nut 4 from turning, the pin beinglocated in the path of the corners ofthe nut, and close to the adjacent side of the nut. The headiwill prevent the pin from beingvacciden-tally removed by vibration or otherwise, and the nut will remain fully tightened.

I do not limit my invention to the S'DI 11c- 1 5 ture-shown' and described,- as modifications,

Oqpies otthis patent 218i he obtained 101% within the scope of the appended claim,

may be made without departing from the spirit. o'f my invention. r r I What I claim is a V In a nut lock, the combination with a nut and bolt, of a washer having extending from the outer side to its inner slde a transverse hole the inner end of which is countersunk, and a. malleable locking pin in said hole and in the path of the corners of the nut and having its innerend upset and expanded in said countersink of the hole.

In testimony whereof I have signed my name to this specification. v

REASON B. EATON.

five cents each, by addressing the Commissioner of Patents. Washington, 1). G3. 

